and in most cases the notification runs from the fbi case agents in the field to their boss fbi director robert muller then to his boss eric holder who knew about the case by the end of the summer. >> the attorney general really, it's his obligation to notify the relevant congressional committees. in some case the attorney general might want to notify the white house or the white house so the white house is not caught off guard by the disclosure. >> the administration stated time line is holder knew about the allegation in august the director of national intelligence, the nation's top intelligence officer firstfbi co month later on election day at 5:00 p.m. and then within a week it had wrapped one petraeus' resignation, shep. >> all of a sudden petraeus is supposed to be testifying regarding the attack in benghazi, libya. but since is he no longer in the cia, somebody else is going to testify. lawmakers say they want to hear from him anyway. >> that's right. half dozen hearings and briefings scheduled this week in benghazi. acting cia director mike more relevant is expected to take gene